The Makita DFS452 is an advanced version of model DFS451 and has been developed as a cordless screwdriver that can match the power of a corded model. FEATURES: Push drive technology - in lock-on mode the motor starts only when the fastener is engaged for work environment and to save battery power. Brushless motor is maintenance free and energy production is more efficient than brushed DC motor because of no friction loss caused by brushes, enabling to lower amperage for reduced heat production and increased work amount on a single full battery charge. Lock on function. Silent clutch. One touch locator - allows for easy locator installation/ removal with a single action. LED job light with afterglow. Variable speed control by trigger. Battery fuel gauge. Belt hook. Ergonomic soft grip. Forward/reverse rotation.